AP Chemistryeasymcq1 pt
How does a catalyst increase reaction rate?
A.It provides a pathway with lower activation energy
B.It raises the temperature
C.It increases the concentration of reactants
D.It makes the reaction exothermic
Explanation
Core Concept
A lower Ea raises the fraction of collisions energetic enough to react, so more succeed per second. The catalyst is regenerated unchanged.
Correct Answer
AIt provides a pathway with lower activation energy
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